Fur and glove sewing machine.



Patented' Apr. 8, 1902.

m. HASHFIELD, EUR AND GLOVE saw-ms MACHINE.

(Application filed Aug. 81, 1901.)

2 Sheets-Sheet I.

(No Model.)

'No. 697,339. Patented Apr. 8, I902.

In. HASHFIELD.

FUR AND GLOVESEWING MACHINE.

(Application filed Aug. 31, 1901. (No Model.) 2 Sheets-Sheet 2;

TNE "cams PEYERS A0. PxoToumm. WASHINGTON. o. c.

UNITED STATES PATENT OFFICE.

MORRIS HASI-IF IELD, OF LONDON, ENGLAND.

FUR AND GLOVE SEWING MACHINE.

SPECIFTCATION forming part of Letters Patent No. 697,339, dated April 8,1902.

Application'filecl August 31,1901. Serial No. 73,927. (No model.)

T0 at whom it may concern:

Be it known that I, MORRIS HASHFIELD, en gineer, a subject of the Czarof Russia, residing at 54: Redcross street, London, England,

have invented new and useful Improvements in Fur and Glove SewingMachines, of which the following is a specification.

My invention relates to fur and glove sewing machines; and the inventionhas for its obj ect to simplify the construction and increase thedurability of the machine, to render the machine more noiseless inoperation, and enable it to be run at a higher speed than other machinesof the kind now in use.

The invention relates to the mechanism for imparting to the looper thevarious move-' ments necessary to the formation of a stitchnamely,longitudinal reciprocating movement, vibrating movement in thelongitudinal plane of the looper-stem, and rocking movement about thelongitudinal axis thereof.

Reference is to be had to the accompanying drawings, forming part ofthis specification, wherein- Figure l is a side elevation of themachine, the casing being in section. Fig. 2 is a crosssection. Fig. 3is a plan with the top of the casing removed. Figs. 4, 5, and 6 aredetail views, on a larger scale, of the parts to which the inventionrelates.

The same letters of reference indicate the same parts in all thefigures.

CL is the looper-hook, carried by a stem 19.

c is theneedle; d, the needle-carrying'bar, reciprocated by a yoke 6,attached to it, embracing a cam f on the main shaft g, as usual.

h h are the work-feed disks, rotated in the usual Way.

Heretofore in such machines the three movements above mentioned havebeen imparted to the looper-stem b by three distinct instrumentalities;but according to my invention I impart both thelongitudinal-reciprocating and the longitudinal-vibrating movements tothe looper-bar carrier by one and the same means-to wit, the radius-armor pair of radius-arms hereinafter mentioned. For this purpose the stem19 of the looper is fitted to slide in a rear guide-bearing i, mountedto vibrate on a transverse axis j, and the stem 1) also passes through atubular front bearing in, confined between a collar Z, fixed by aset-screw upon the stem 12 and a shoulder m on said stem. The bearing iscarried by a transverse bearing n, pivoted freely upon a pin 0, fixed ina pair of radius-armspp, carried by a rook-shaft q, journaled on centersr and provided with an arm 3, coupled by a rod 15 to the strap u of aneccentric o, fast on the main shaft g. By the movement of therock-shaftg the arms are caused to vibrate in an arc Z Z, whereby bothlongitudinal sliding movement in its bearing *6 and vibrating movementabout the axis j of said .bearing are imparted to the looper-stem Z).The rocking movement of the looper-hook a about the longitudinal axis ofits stem is'imparted from a cam-disk w, revolving with the main shaft gand having a groove to, in which is engaged a stud and roller m on theone arm a," of a bell-crank lever, fulcrumed at a fixed point as, andwhose other arm 00 is coupled by a link y with a laterally-projectingarm z on the collar Z, fixed, as above mentioned, on the stem 1) of thelooper-hook, the joints y. y of the link y being spherical or universalto permit of the various relative movements of the linky and of the armswhich it connects, the rocking movement of the looper-stem about its ownlongitudinal axis being so coordinated with the longitudinal sliding andvibrating movements of the looper-stem as to give the looper-hook themovements necessary for the proper formation of the stitch.

I claim- 1. In a fur and glove sewing machine the combination with thelooper-hook stem, of a bearing or support for the rear end thereof inwhich the looper-stem is fitted to slide, a transverse horizontal axison which said bearing is mounted to vibrate, the said bearing beingadapted topermit both longitudinal reciprocating movement of the saidstem and vibrating movement thereof about said axis, a hearing orsupport for the front end of the stem confined upon said stem so as tobe incapable of longitudinal motion relatively thereto, and means foroperating the looperstem, comprising a radius arm or arms pivotallyconnected to said front bearing and adapted to receive angular motionabout an axis transverse to the said stem, so asto thereby impart tosaid stem both longitudinal sliding motion and also vibrating motion inits vertical plane about the transverse axis at its rear end, andmechanism for imparting the said movement to the radius arm or arms, asspecified.

2. In a fur and glove sewing machine, the combination with thelooper-hook stem of a bearing or support for the rear end thereof,adapted to permit both longitudinal reciproeating movement of the saidstem and vibrating movement thereof about a transverse horizontal axissituated at the said bearing, a front bearing or support for said stemso connected to said stem as to be incapable of longitudinal movementrelatively thereto, and means for operating the looper-stem comprising aradius arm or arms in pivotal connection with said front bearing andadapted to receive angular motion about a transverse axis, an cecentricon the main shaft, and means intermediate thereof and of said radius armor arms whereby the rotation of the eccentric is caused to impartvibrating movement in an arc to the said radius arm or arms, and therebyto impart combined longitudinal sliding and vibrating motion to thelooper-stem, substantially as specified.

3. In a fur and glove sewing machine, the combination with thelooper-hook stem so mounted as to be adapted to receive longitudinalreciprocating motion, vibrating motion about a transverse horizontalaxis at its rear end, and rocking motion about its own longitudinalaxis, of means for imparting the said reciprocating and vibrating motionto the looper-stem, and mechanism for imparting the rocking motion tothe said stem about its own longitudinal axis, the said mechanismcomprising a cam on the main shaft, a bellcrank lever having one armengaged in the cam-groove and the other arm coupled to alaterally-projecting arm fast on the looperhook stem by an intermediatelink and universal joints to permit of the relative movements of theparts, as described.

4. In a fur and glove sewing machine, the combination with thelooper-hook stem, and a rear guide -bearing in which the looperstem isfitted to slide, the said bearingbeing mounted to vibrate on atransverse axis, ofa front bearing through which the looper-stem passes,the front bearing being held against longitudinal movement on the stem,a transverse bearing carrying the front bearing, and means for operatingthe looper-stem, comprising a shaft mounted to rock, radius-arms carriedby the rock-shaft and to which the said transverse bearing is pivotallyconnected, an eccentric on the main shaft of the machine, and a rodconnecting the eccentricstrap with an arm on the rock-shaft, whereby therotation of the eccentric will move the radius-arms to impart to thelooper-stem a longitudinal sliding movement and a vibrating movement inits longitudinal vertical plane, substantially as specified.

5. In a fur and glove sewing machine, the combination with the mainshaft of the machine, the looper-hook stem, the bearings for the same,and means for imparting a longitudinal reciprocating motion andvibrating motion in a vertical plane to said looper-stem from the mainshaft, of means for imparting a rocking motion to the looper-stem aboutits own longitudinal axis, the said means comprising a cam-diskrevolving with the main shaft and provided with a groove, a bellcranklever fulcrumed on a fixed point and having one arm provided with aroller engaging the groove of the cam, a collar fixed on the stem of thelooper-hook and havinga laterally-projecting arm, and a link connectedby universal joints with the said laterallyprojeeting arm and the otherarm of the bellerank lever, substantially as described.

MORRIS HASHFIELD. Witnesses:

CAMPBELL G. CLARK, THOMAS W. KENNARD.

